C# WCF不接受甘特图Json数据

我在我的C项目中使用了甘特图，它来自。如果单击导出按钮，我们将从甘特图中获得一个json。我正在将相同的json传递给我的wcf，如下所示

function WCFJSON(ganttData) {

     console.log(ganttData); //Object 
     var gdata = JSON.stringify(ganttData);        
     console.log(gdata);

     $.ajax({
         type: "POST",  
         url: "../../GanttService.svc/SaveGanttData", // Location of the service
         data: gdata, //Data sent to server
         contentType: "application/json; charset=utf-8",  
         dataType: "json", //Expected data format from server
         processdata: true, //True or False
         success: function (msg) {//On Successfull service call
             ServiceSucceeded(msg);
         },
         error: ServiceFailed// When Service call fails
     });
 }

这是gdata变量中的json

"{"tasks":[{"id":-1,"name":"Gantt editor","code":"","level":0,"status":"STATUS_ACTIVE","start":1386527400000,"duration":30,"end":1390415399999,"startIsMilestone":true,"endIsMilestone":false,"collapsed":false,"assigs":[{"id":"tmp_1386591686448","resourceId":"tmp_1","roleId":"tmp_1","effort":0}],"description":"","progress":0},{"id":-2,"name":"codings","code":"","level":1,"status":"STATUS_ACTIVE","start":1386527400000,"duration":10,"end":1387564199999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"description":"","progress":0},{"id":-3,"name":"gant parts","code":"","level":2,"status":"STATUS_ACTIVE","start":1386527400000,"duration":2,"end":1386700199999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":""},{"id":-4,"name":"editor parts","code":"","level":2,"status":"STATUS_SUSPENDED","start":1386700200000,"duration":4,"end":1387218599999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":"3"},{"id":-5,"name":"testings","code":"","level":1,"status":"STATUS_SUSPENDED","start":1388601000000,"duration":15,"end":1390415399999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":"2:5","description":"","progress":0},{"id":-6,"name":"test on safari","code":"","level":2,"status":"STATUS_SUSPENDED","start":1389810600000,"duration":2,"end":1389983399999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":""},{"id":-7,"name":"test on ie","code":"","level":2,"status":"STATUS_SUSPENDED","start":1390156200000,"duration":3,"end":1390415399999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":"6"},{"id":-8,"name":"test on chrome","code":"","level":2,"status":"STATUS_SUSPENDED","start":1390156200000,"duration":2,"end":1390328999999,"startIsMilestone":false,"endIsMilestone":false,"collapsed":false,"assigs":[],"depends":"6"}],"selectedRow":2,"deletedTaskIds":[],"resources":[{"id":"tmp_1","name":"Resource 1"},{"id":"tmp_2","name":"Resource 2"},{"id":"tmp_3","name":"Resource 3"},{"id":"tmp_4","name":"Resource 4"},{"id":"tmp_5","name":"Resource 5"},{"id":"tmp_6","name":"Resource 6"},{"id":"tmp_7","name":"Resource 7"},{"id":"tmp_8","name":"Resource 8"},{"id":"tmp_9","name":"Resource 9"},{"id":"tmp_10","name":"Resource 10"}],"roles":[{"id":"tmp_1","name":"Project Managers"},{"id":"tmp_2","name":"Worker"},{"id":"tmp_3","name":"Stakeholder/Customer"}],"canWrite":true,"canWriteOnParent":true}"

我的WCF方法是

  public string SaveGanttData(String tasks)
    {
        try
        { 
            var apps = JsonConvert.DeserializeObject<Tasks>(tasks);
            var retValue = "";
            foreach (var task in apps.tasks)
            {                    
                retValue += "Name - " + task.name + " Code - " + task.code;
            }
            Console.ReadLine();
            return string.Format("You entered: {0}", retValue);
        }
        catch (Exception ex)
        {
            return string.Format("Failed: {0}", ex.Message);
        }

    }

---

点击服务后，浏览器控制台中会显示Always null。我尝试了几种方法，但无法将确切的json数据传递给我的wcf。请帮帮我

您的服务只接受单个字符串，而您正在以以下格式发送更复杂的JSON:

任务-对象数组 selectedRow-整数 DeletedTaskKids-对象数组 资源-对象数组 角色-对象数组 可写布尔 canWriteOnParent-布尔型 如果您使用的是Visual Studio 2013，请将JSON复制到剪贴板，并使用菜单“编辑>粘贴特殊内容>粘贴JSON为类”将其粘贴到Visual Studio，以从C角度查看表示此JSON的适当类